a) Why should you hold a test tube cap between your third and fourth fingers instead of putting the cap on the table? b) Why is it important to tap any liquid out of your loop before removing the loop from the broth you just inoculated?
Added by Stephanie P.
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The first two fingers of the left hand are usually used to hold the inoculation loop, so using the third and fourth fingers to hold the cap prevents any potential contamination from the table surface. ** Show more…
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